Shoe



s. STRAUSS.

SHOE. v APPLICATlON FILED APR-30,1917- RENEWED AUG-20,1919. 1,331,220.Patented Feb. 17,1920.

j I Jar/wed SAMUEL STRAUSS, 01 L08 ANGEL-ES, CALIFORNIA.

SHOE.

Specification 0! Letters Patent. I

Patented Feb. 17, 1920.

App1ication filed April 80, 1917, Serial No. 165,311. Renewed August 20,1919. Serial No. 318,770.

To all whom it may concern:

Be it known that I SAMUEL, STRAUss, a citizen of the United tates,residing at Los Angeles, in the count of Los Angeles and State ofCalifornia, ave invented a new and useful Shoe, of which the followingis a specification. 1

The subject matter of this invention was canceled from my previousapplication for patent for shoe, led Feb..21, 1917, Serial Number150,031. y

An object of this invention is to minimize the cost of shoes made ofleather or similar.

The accompanying drawings illustrate the invention;

Figure 1 is a vertical mid section of a machine well adapted tomanufacture the newly invented shoe, the operating parts being shown intheir shoe-forming positions.

Fig. 2 is aside view of the unfinished shoe produced by the machineshown in Fig. 1.

Fig. 3 is a side view of the same shoe completed.

Fig. 4: is a side view of the shoe in Fig. 3

. with the addition of a supplementary sole.

Fig. 5 is a plan view of the shoe shown in ny suitable machine may beemployed to perform the various operations whereby this newly inventedshoe 1s made, and therefore the machine shown in Fig. 1 is only typicalof the kinds of machines which may be employed in the manufacture of thenew shoe. In Fi 1' there is provided a female die 1 of suita le materialsuch as zinc or the like mounted in a base 2 provided with a mold cavity3 having an undercut toe portion 4 adapted to receive a toe portion 5 ofa male die which is formed of sections 6, 7 the section 6 being providedwith the toe portion 5 and the section 7 formin the curved heel portionthat fits in the un ercut heel portion 7 of the female die. The diesections 6,7 are provided with complementary inclined faces 8, 9respectively adapted to seat against one another when the die 6, 7 is inthe shoe-forming position, the section 7 being-provided with a tongue 10deslgned to engage a groove 11 in the face 8 of the section 6 so as toprevent the section 7 I from sliding relative to said section 6 when thesections are inserted in the die 1 and pressure is applied to said-diesections.

. The die sections 6, 7 are loosely and yieldmgly connected to oneanother by a loose connection such as a coil spring 12 fastened at itsopposite ends to said sections respect1vely and designed to seat inrecesses 12, 12" cut 1 nto the faces 8, 9 res ctively.

The dle is provided wit a top flat flange-formlng face 13 havin agrooved 1 extend around the mouth 0 the cavity 3. Above 1; e flat topface 13 of the die. 1, there is provided a presser foot 15 having a bead16 complementary to the groove 14, said presser foot being reciprocativeon guide rods 18 mounted on the die 1 and pro ecting upward therefrom.The presser foot 15 is provided with upwardly pro ecting ears l9fastened by rivets 20 or equlvalent to the lower ends of diagonallyextending guide rods 21 on which is reclprocatlvely mounted a follower22 havmg ears 23 provided with perforations 24:, through which said rods21 extend. The follower 22 is pivoted at 2-5 to the upper end of aswinging arm 26 which is pivoted at 27 to a 1111.; 28 secured by a capscrew 29, or equlvalent, to the die section 7.

The follower 22 is normally supported, relative to the presser foot 15in the position shown in Fig: 2, by coil springs 30 surrounding the rods21 between the ears 23 and abutments .31 projecting from the guide rods21.

The male 'die 6, 7 and the parts moving therewith may be operated by anysuitable power and in the instance shown in the drawings said power maybe applied through an arm 32 pivoted by the pivot 25 to the follower 22.

The presser foot 15 is provided with a rearwardly and upwardly inclinedface 33 forming a rest and guide along which the male die slides whensaid die is moved up and down.

In practice to make the shoe shown at a, Fig. 3; the machine describedabove will be operated. as follows: Assuming at the start that the partsare in the positions they occupy when the male die is withdrawn, a pieceof leather, which may have been previously soaked in Water, if desired,will be placed on the flange-forming face 13 and the piece of leather.

arm 32 will be operated to lower the presser -foot 15 on to the leatherto hold said leather 22 against the expansive force of the springs 7 toforce the male diet, 7 into the shoeforming position as in Fig. 1,thereby pressing the leather into the desired shape determined by theform of the dles'so as to form the upper b and sole 0 all from theslngle Then the arm 32 will be operated to raise the follower 22 orallow said follower to be the springs 30, the first portion ofsaid-movement, owing to the sectional construction of the male die andto the loose connection between said sections, raising the section 7 andsliding said section forward relatlve to the section 6 so as to'withdraw the rear face of said section 7 out of the undercut heelportion 7 and further movement of the arm 32, by reason of the'spring12, withdrawlng the toe section 6 from the undercut toeforming portion 4and at the same time raising the presser foot 15 out of engagement withthe flange d of the sh0e,'so that the parts again assume the retractedpositions.

To complete the shoe formedas above, all that is necessary is to trim itby cuttin off all or part of the flange d and,.. if desired, the uppermay also be provided with a slit e of which the edges may be drawntoward one another by laces or equivalents, riot shown.

Thus it is seen that the finished shoe is formed of a single piece ofleather and is absolutely seamless.

If it is desired to have a shoe with a heavier sole, a sole f may befastened to the sole 0 as in Fig. 4.

I am not aware that a seamless shoeformed of a single piece of moldedleather has ever been known before this invention thereof, and theforegoing read in connection with the drawings filed herewith willenable'those skilled in the art to which this invention pertains to makethe newly inventedshoe. I t

' The vamp 34 of the shoe, as is clear, is integral with the otherportions thereof, as is the entire heel, thus' differentiating this shoefrom" the sandal type of shoe disclosed in Patent No. 1,167,277 issuedJanuary 4, 1916, to Wilfred J. Drey, which sandal, exclusive of thefastening straps, is composed of three distinct pieces fastened ether.

.' I hi s present shoe besides being ormed of I a single piece ofleather is absolutely seamforced .upward by the expansive'action ofless, since by the improved method of mak- 1 it seams are unnecessary.

I'claim: I Ashoe'comprising an entire upper and sole-formed from asingle piece of leather I molded into-shape.

'. 2. A shoe-formed entirely from a-seamless slngle piece of leathermolded into' shape to form an inte ral upper and sole.

3. A shoe ormed entirely of a-single piece of leather molded into shape,the middle portion of said piece being intact and forming the sole ofthe shoe, and the marginal portion having a slit and being otherwiseintact and forming'the upperof the shoe substantially as described.

4. A shoe eomprisin g'a unitary upper and sole entirely formed from aslngle piece of.

leather molded into shape, the heel portion of said upper beingoutwardly convex.

5. A shoe of which the vamp and sole are I integral with one another andthe sole and entire upper are formed from a single piece of leathermolded into shape, said vamp having a slit extending from its upper edgetoward the toe ,of the shoe.

Signed at 'Los Angeles, California this 14th day of April 1917.

SAMUEL STRAUSS.

Witnesses: I

Gnonon H. HILEs, A. SGHMIDTBAUER.

